I like that this software allows me to do most things without leaving my desk - from creating new projects or adding tasks directly within an active project.
It can be slow at times when loading large files (we are talking hundreds if not thousands of pages). Some functions require additional training/learning for our users before they feel comfortable using them. This program has been great so far as we've used it primarily during client meetings but will definitely use more now since we have access 24x7! We needed something similar to Outlook where clients could see their task list items and respond directly via email.